Lubricator



Jan. 1 5 1924; ASS

H. L. MAGILL ET A'.

LUBRI CAT OR Original Filed Mayw23. 191'?l Patented Jan. l5, 19,24.

i miren stares PATENT orne-E. ,f

HERBERTL. MAGILL AND FREDERICK JaKNORR, OF CHICAGO, ILLINOIS.

LUBRICATOR.

Application iled May 23, 1917, Serial To all whom t may concern:

v Be it known that we, HERBERT L. MAGILL and FREDERICK J. KNoRn, citizens of the United States, residing at Chicago,-in the county of Cook and Stateof Illinois, have invented `certain new and useful Improvements in a Lubricator, of which the following is aspecification, reference being had to the accompanying drawings, yforming a part thereof. l v

`This invention relates to means for sup-` bearing being shown in section transverse to` the axis of rotation.` c Figure 2 is `a detail section taken as indicated at line 2 2 on Figure 1.

Figure 3`is a detail section taken as indicatted atline on Figure 1. l

Figure 4 is a detail section at line 4 4 on Figure 1. y

Figure 5 is a partial axial section of a modiiied form of lubricator yshown applic to another form of bearing.

Figure 6 is a transverse section taken as indicated at line 6 6 on Figure 5.

Figure 7 is a detail section taken asindicated at line 7 7 on Figure 5. n

Figure 8 is an axial section of alubricator showing certain detail features of Figurel combined withl other detail features of the form shown in Figure 5.

This invention relates to their simplest form are merely receptacles for a quantity of grease, each receptacle bein arranged with a removable cover for illing it, and with an outlet rleading to the bearing to be lubricated. Referring first to-V Figure 1, it will be noticed that the lubrithat class of lui `bricators known as grease cups, which in No. 170,548. Renewed Mag-1,17, 1923.

ing, 3, leading directly to the portion to be lubricated, which, as shown in Figure 1, consists ofthe rollers, 4, and runways, 5

`and 6, of a roller bearing. To facilitate the passage of grease through the chamber, 1, to the outlet, 3, a feed pin, 7, is mounted in the chamber, with its `end portion extending throughthe outlet, 3, the extremey end of the pin being rounded'at 7, to act as a cam in contact with the rollers, 4, of the bearing, as they pass ksuccessively across the opening into which thek outlet, 3, of the lubricator discharges. u n i f The feed pin,.7,r is provided with an enlargement consisting of a shell, 8, secured to the pin1 at aqportion adjacent the con verging rwalls of the chamber, 1, said shell being tapered `with its smaller end toward the outlet, ,3,A so that reciprocation ofthe pin, 7 alongits own axis, causes the shell,

8, to Vforce the grease downwardly through theconverging-walls ofthe chamber, r1, toward the outlet, 3, and such reciprocation of the pin, 7, will be causedgby contact of its rounded end, 7a, with the successive rollers,

4, whenever they are caused to travel upon the runway, 5, by rotation of the journal, 6, of the bearing. of the pin, 7more positiveand certain, a spring, 9, may be provided, arranged to yieldingly resist movement .of the pin away from the outlet,f3,thus insuring the return of its cam portion, 7a into the path of the rollers, 4, afterfeach contact with one of said roljlers in their travel. This spring, 9, as shown, is coiled around the portion of the pin, .7, withinnthe larger part of the chamber, ,1, said `spring reacting against the upper side ofthe enlargement, 8, and a guide, 10, provided'for ythe endfoffthe pin remote from the outlet, 3, said guidebeing supported upon lthe removable cap, 2. f

The protrusion of the cam portion, 7, of the pin, 7, into the ypath of the rollers, 3, is limited by providing a stop member, 11', which 'serves also' as-"a guide extending across the ccnstricted throatway of they `To render this movement chamber 12, between the position of enlargement, 8on the pin, 7, and the outlet, 3, of the chamber. formed in athreaded neck, 13, byrwhich the lubricator is secured tothe bearing, and for convenience in attaching or oletaching it, the throatway, 12, is of a non-circular As shown,y the'outlet, 3, is

form shown in Figure 2 as hexagonal. The stop member, 11, may therefore be formed as indicated in Figure 2, comprising a middle apertured portion, 11a, serving as a guide for the pin, 7, and providedy with outwardly extending arms, 11b, whose -terminal portions iare bent transversely of the plane 'c'fthe guide portion, 11a, at 11, for

frictional Contact with the walls of the throatway, 12. Preferably the arms, 11b, are inverted V-sh'ape in cross section, so that` they may not seriously interfere with the feed of the grease'tihrough the, throatway, 12, and the terminal portions, 11, may also be if-shape, so as -to fit in the angles of the hexagonal throatway, 12.

The details of construction of the enlargement of the feed pin, 7, may be noticed bycomparison of Figures 1 3 and 4. As indicated in Figure 3, the pin, 7at this point is flattened and thereby widened, to form shoulders facing toward its opposite ends respectively, said flattened portion being indicated at 7 b. A, flange, or collar, 14, is applied to the pin, 7, against onev of these" shoulders, while the frusto-conical shell, 8, is slipped o n over the other end of the pin forjengagement of its lower flange,i8a, with the other` shoulder of the flattened portion, 7 b. The upper end of the shell, 8, at its larger diameter, isy then crimped or pressed down around the collar, 14's, as shown at 8b, `whereby the fiange 14, is permanently secured in position. If desired, to prevent the spring, 9, from being lost when the chamber, 1, is opened and in case the parts are removed, the lower end of said spring may be insertedthrough a notch, 14a, in ythe collar, 14, and bent against the under side of said collar, 14E, before the shell, 8, is applied. The upper guide member, 10, against which the spring, 9, reacts, may be simply astripof metal riveted as shown tothe cover, 2, at two points and bent to depend from said cover, and having an aperture, 10a, in such depending port-ion to receive the upper end of the pin,`7. The cover, as indicated, at 2a, is secured to the chamber wall by means of a bayonet lock.7

Figure 5 illustrates the application of the mechanically actuated feed pin, 7, to a cross`- head slide bearing, a fragment of the crossheadbeing indicated at 15, and the bearing member, 16,'being shown as formed with an annular boss, 17, interiorly y threaded to receive-a plane cylindrical shell, 18, which forms the'chamber `of the 'lubricatoiu With this construction, a simplified form of guide and stop is provided at 19, being merely ai strip `lof metal having a vcentral apertured diskl portion, 19t, embracing the pin, 7, and positioned-fo"engage the enlargement, or shell, 8, as a stop, and having outwardly extending arms, 19h, which may lie as shown on the `slopingvvalls, which connect the interior of the shell, 18, with the outlet opening, 21, leading to the bearing surface, 22. The extreme terminal portions of the arms, 19h, may be clamped in position by the screwing down of the tubular shell, 18, in the threaded boss, 17, these portions being shown at 19C. The rounded end of the feed pin, 7, extends just sufficiently in the path of the cross-head, 15, to be actuated thereby, and, if desired, the end portion of said crosshead may be formed with a gradually sloping surface, 15a, for contact with the rounded portion, 7a, of the pin, 7. Figure 5 and Figure 7 also show a modied formof guide for the arm of the feed pin, 7, remote from the throatway; this consists in a bracket, 23, secured to the side wall, 18, by the same rivets, 24, which serve to hold the hinge, 25,

for the cover, 26. Adjacent the guide opening, 27, the arm is .formed with a slot, 28, communicating with said opening and through which a thin portion, 29, of the pin, 7, Vmay be entered in assembling the parts.

' 'It will be understood that the differences in detail construction shown in .Figure 5 are not essential to the adaptation ofthe lubricator to a cross-head bearing as distinguished from a roller bearing; but said 'figure is merely used for convenience in showing these modifications of detail. Since in both forms of grease cup illustrated, the guide for the lower portion of the feed pin is readily removable, and since in both forms of guides, 10 and 19 respectively, the cent-ral apertured portion is a disk, it will be evident. that these guides may be made with central ydisks of various sizes so that by replacing one guide with another having a central disk portion of different size, the unobstructed area of throatway may be varied and the rate of feed ofthe grease cup Athus varied for different installations.

It may be further understood that the two forms of covers, as well as the two forms of guides for the upper end of the feed pin, 7, as shown in Figures 1v and 5 respectively, may be interchangeably used. regardless of which form of guide employed for. the lower end of the pin and'reg'ardless of the particular design of the grease cup adjacent the bearing. @ne such recombination is illustrated in Figure 8, in which the hinged cover, 26, and guide arm, 28, are shown associated with a cup, whose nipple and lower guide member, 11, are of the form shown in Figure 1.

I claim:

1. In combination with a bearing and a ymovable member bearingthereon and having a surface which diverges acutely from a part of the bearing surface adjacent the bearing area` thereof, said bearing` 'surface being apertured for admission of lubricant, a lubricator comprisinga chamber formed with walls converi'ng toward said aperture and a feed pin 'in thechamber with an enlargement adjacent said converging walls, and having its end portion projected through the aperture for operative contact with said oblique surface of the moving member. i

2. In the combination defined in claim 1, the feed pin having its `end portion rounded and projecting through the aperturey for its contact with the moving member.`

3. In the combination defined in claim 1, a spring yieldingly holding the pin in position for its contact with the moving member.

4. In the combination defined in claim 1, a sto-p device in the chamber arranged for limiting the movement of the pin toward said moving member. y j

5. In the combination defined in' claim 1, a stop arranged for limiting the movement of the pin toward said moving member, and

a spring positioned to resist movement of' the pin away from said member. Y j

6. In the combination'defined in claim 1, a guide in the chamber engaging said feed pin for positively centering it with respect to the outlet. f

` 7. In the combination defined inclaim 1, guiding means in the chamber engaging fsaid pin adapted to permit longitudinal movement thereof, but arranged tol resist lateral displacement of said pin in the chamber.

8. In combination with a roller bearing, a chamber for lubricant provided with an outlet leading to the bearing rollers,vand a movable feed pin in said chamber extending through the outlet for contact with said rollers in their travel. l

9. In the combination defined in claim 8, a stop arranged for limiting the movement of the pin toward said rollers.

10. In thecomb-ination defined in claim 8, said feed pin being yieldingly held in position for contact of its end portion with the rollers in their travel.

11. In the combination defined in claim 8, a spring resisting movement "of said pin away from the rollers.

12. In the combination defined in claim 8, a stop arranged for limiting the move-V ment of the pin toward the rollers and a spring resisting the movement ofy the pin away from the rollers.

13. In the combination defined in claim 8, said feed pin having its end rounded to act as a cam `for contact with the rollers of the bearing.

14. In the combination' defined in claim 8, a guide in the chamberfor the end of the feed pin remote from `the outlet.

15. In the combination defined in claim 8, a guide in the chamber engaging said pin near said outlet.

16. In the combination defined` in claim 8,

" al. guide in the chamber engagingsaid pin near the outlet and a second guide in the chamber engaging a portion of the pin remote from said outlet.

17. In the combination defined in claim 8, said feed pin being provided with an enlargement adjacent the converging walls of the chamber, and a stop member secured between said walls in position to engage the enlargement for limiting the movement of the pin toward the rollers.

18. In the combination defined in claim 8, said pin being provided with an enlarge ment adjacent vthe converging walls of the chamber and a guide member secured between said walls, apertured to receive and position a portion of said pin between its enlargement and said rollers, said guide also engaging the enlargement for stopping the pin against excessive movement toward the rollers.

19. Alubricator comprising a chamber having an outlet and walls converging toward said outlet, a movable feed pin in the chamber extending into the outlet and provided with an enlargement adjacent said converging walls, and a guide in said chamber between the enlargement of the pin and said outlet apertured toembrace said pin and positioned to engage said enlargement.

20. A lubricator comprising a chamber having an outlet and walls converging toward said outlet, a movable feed pin in the chamber extending into the outletl and provided with an enlargement adjacent said v converging walls, and a stop in the chamber positioned to engage said enlargement for limiting the movement of said pin in the direction of the outlet. y,

21. A lubricato-r comprising a chamber having an outlet and walls converging toi ward said outlet, a movable feed pin in the chamber extending into the outletand provided with an enlargement adjacent said converging walls, and a guide extending transversely in the chamber engaging the pin between its enlargement and the outlet', the surface of said guide facing the cavity of the chamber being inclined in the direction of the outlet to minimize the obstruction of said outlet by the guide. u f

22. A lubricator comprising a chamber having an outlet and walls converging toward said outlet, a movable feed pin in the chamber extending into the outlet and providedy with an enlargement adjacent said converging walls, and a guide in said chamber between the enlargement of the pin and said outlet apertured to embrace said pin and extending transversely therefrom to the f walls of the chamber, but having its sur! face which faces the cavity of said chamber of V-shaped cross-section to prevent ob structing the feed of lubricant from the v having an outlet and walls converging toward said outlet, a movable feed pin in the chamber extending into the outlet and provided with an enlargement adjacentsaid converging walls, and a guide in said chamber secured between the walls thereof and engaging the pin between its enlargement and said outlet.

24. In a lubricator comprising a cham-` ber having an outlet and walls converging toward said outlet, a movable feed pin in the chamber extending toward the outlet and provided with an enlargement adjacent said converging walls., and a guide removably secured in the chamber between said enlargement to receive the pin and provided with arms extending for engagement with the walls of the chamber for positioning the guide therein. i

25. A lubricator comprising a. chamber having an outlet and walls converging toward said outlet, a movable feed pin in the chamber extending into the outlet and provided with an enlargement adjacent said converging walls, a stop in the chamber positioned` to engage said enlargement for limiting the movement of the pin in the direction of the outlet, and a spring resisting movement of said pin away( from said stop.

26. A lubricator comprising a chamber having an outlet and walls converging toward said outlet, a movable feed pin in the chamber extending into the outlet and provided with an enlargement adjacent said converging walls, a stop in the chamber positioned to limit the movement of the pin in the direction of the outlet, a guide in the chamber engaging a portion of said pin remote from the outlet and a spring disposed to react between said guide and the enlargement of the pin for yieldingly holding the latter against said stop.

27. A lubricator comprising a chamber having an outlet and walls converging toward said outlet, a movable feed pin in the chamber extending into the outlet and provided with an enlargement adjacent said converging walls, a guide in the chamber engaging said pin near the outlet, and a second guide in the chamber engaging a portion of the pin remote from said outlet.

28. A lubricator comprising a chamber having an outlet and walls converging toward said outlet, a movable feed pin in the chamber extending into the outlet and provided with an enlargement adjacent said converging walls, a cover for the chamber adapted to be opened to give access thereto and guiding means for said feed pin fixed in the chamber independent of said cover.

29. A lubricator comprising a chamber having an outlet and walls converging toward said outlet, a movable feed pin in the chamber extending into the outlet. and provided with an enlargement adjacent said converging walls, a cover for said chamber adapted te be opened to give access thereto, and a guide for the feed pin in the chamber secured to a wall thereof and independent of. theI cover. i

30. A lubricator comprising a chamber having an outlet and walls converging toward said outlet, a cover for the chamber at the end opposite said outlet, a movable feed pin in the chamber extending. into lthe outlet and provided with an enlargement adjacent said convergingy walls, said pin being completely enclosed in thechamber when the cover is applied thereto, and guiding means for the pin in the chamber independent of said cover.

31. A lubricator comprising a chamber having an outlet and walls converging toward said outlet, a movable feed pin in the chamber extending into the outlet and provided with an enlargement adjacent said converging walls, and a guide for the pin having a guide aperture with a laterally extending. slot leading thereto and narrower than the,y diameter of said aperture, a portion of the pin normally out of contact with said guide being reduced in thickness to permit its. insertion through said slot.

32. A lubricator comprising a chamber having an outlet and walls converging t'oward said outlet, a movable feed pin in the chamber extending into the outlet and provided with an enlargement adjacent said converging walls. a guide for the portion of said pin remote from the outlet comprising a bracket extending transversely from a wall of the chamber, a hinged cover for said chamber disposed with one member of its hinge against the wall of the chamber, and a securing member. engaging said hinge and bracket for retaining said parts.

33. In a device of the character indicated a feed pin formed with oppositely facing abutments, a collar on the pin engaging one of said abutments, and a frusto-co'nical shell having a liange at one end engaging the other abutment, the other end of said shell encompassing said collar with the edge of the shell bent over the collar to retain said part on the pin.

34. In a device of the character indicated a feed pin having a deformed portion providing oppositely facing abutments, a collar on the pin in contact with one of said abutments and a shell enclosing said deformed portion, comprising a flange at one end engaging the other abutment, and a flange at the other end bent over the edge of said collar to ret-ain the shell in position.

35. In a device of the character'indicated, a feed pin having a deformed portion providmg opposite facing abutments, a collar on the pinv in contact with one of Vsaid abutments, said cellar having a notch adjacent the pin, a spring coiled upon the pin with one end extending through the notch of the collar and bent over on the opposite side of said collar, together With a shell enclosing the deformed portion of the pin and the bent end of the spring, and comprising a iange at one end engaging the other abutment of said pin, and a flange at the other end ybent over i the edge of said collar to retain the position.

In testimony whereof, We have hereunto set our hand at Chicago, llinois, this 19th day of May, 1917.

HERBERT L. MAGILL, FREDERICK J. KNORR.

part in 

